According to the Web2.0 concept development and the blogger sharing experience emerges, about approximately 2000, the world presented some citizen news websites to differ in size. Encourage to the audiences to publish or to exchange their opinions by the platforms for participation. Everyone may be the reporter, can make response to the subject what they care about, them achieves the gold: citizen all participation and sharing opinions about public things.This tide of citizen news website upsurge also gradually emerges in Taiwan. So this study will investigate factors affecting audiences to leave traditional media environment, and starts to choose accepts coordinates the cooperation by citizen reporter, to report and the share citizen news website . After reading some literatures about Technology Acceptance Model, this study base on UTAUT (Unified Theory of Acceptance and Use of Technology) and combine the mass collaboration factor, and expect to find relationships among these factors and attitude toward behavior intention for using citizen websites, and influence attitude toward behavior for using citizen websites on intention to citizen websites using behavior.The statistical analysis was done using the Structural Equation Model (SEM) of SPSS 12.0 and LISREL 8.54. The results as follows: “Performance Expectancy”, “Effort Expectancy” and “Mass Collaboration” have positive effects on the individual’s “attitude toward behavior intention for using citizen websites”, “Facilitating Conditions” has a positive effect on the individual’s “citizen websites using behavior” and “Social Influence” has no positive effect on the individual’s “attitude toward behavior intention for using citizen websites”.In addition, this research basis findings and the analysis, further discuss the design mechanism for citizen news platform, hoped that enables to strengthen the citizen websites, and to tally read audience’s demand.